Update app.py

app.py

@@ -165,7 +165,12 @@ with gr.Blocks(title="Voice Bot: Krishnavamshi Thumma") as demo:
     </style>
     """)
 
-    api_key = gr.Textbox(label="🔐 OpenAI API Key", type="password", elem_id="apiKeyInput")
+    api_key = gr.Textbox(
+    label="🔐 OpenAI API Key (GPT-4o required)",
+    placeholder="Paste your OpenAI GPT-4o API key here (not GPT-3/3.5-turbo)",
+    type="password",
+    elem_id="apiKeyInput"
+    )
     key_status = gr.HTML("<div id='keyStatus'></div>")
     
     # Chatbot component to display messages